Delford Machinery Company
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Excavator Parts Main Pump Used For CAT320C/D SBS120/140 Hydraulic Pump
(Industrial-Grade High-Performance Hydraulic Pump System)
The CAT320C-D SBS120/140 Hydraulic Pump is a robust, precision-engineered hydraulic power unit designed for heavy-duty industrial and mobile machinery applications. Combining advanced flow dynamics with exceptional durability, this pump delivers reliable performance in demanding environments such as construction, mining, agriculture, and material handling.
| Parameter | SBS120 | SBS140 |
| Displacement | 120 cc/rev | 140 cc/rev |
| Max Pressure | 140 bar | 140 bar |
| Speed Range | 800–2200 rpm | 800–2200 rpm |
| Operating Temp | -20°C to 90°C | -20°C to 90°C |
| Weight | 48 kg | 52 kg |
The main hydraulic pump is the absolute heart of any excavator's operational system, acting as the primary power source that drives all critical functions including the boom, arm, bucket, swing, and travel motors. Without a reliably functioning main pump, your heavy equipment is effectively immobilized, leading to significant downtime and costly project delays. Investing in a high-quality replacement main hydraulic pump is paramount to ensuring the continued efficiency and productivity of your construction machinery.
This specific main hydraulic pump is engineered for seamless compatibility with Caterpillar CAT320C and CAT320D series excavators, as well as machines utilizing the SBS120 and SBS140 hydraulic pump models. Its design and manufacturing adhere to stringent industry standards, ensuring it meets or exceeds the performance benchmarks of original equipment components. Precision engineering is fundamental to our production process, utilizing advanced machinery and skilled craftsmanship to fabricate every internal part, from the housing to the pistons and control valves, with utmost accuracy.
Constructed from robust, high-grade materials, this hydraulic pump is built to withstand the extreme pressures and demanding conditions inherent in heavy-duty excavation and construction work. The internal components are made from specially hardened alloys to resist wear and tear, significantly extending the pump's operational lifespan. Furthermore, it incorporates advanced sealing technologies to prevent oil leaks and maintain optimal system pressure, contributing to enhanced fuel efficiency and reduced operational costs over time. Every unit undergoes rigorous testing protocols, including pressure, flow, and noise level assessments, to guarantee faultless operation and consistent performance upon installation.
Replacing a worn or failing main hydraulic pump with a reliable alternative is crucial for restoring your excavator's original digging force, lifting capacity, and smooth, responsive control. A compromised pump can lead to sluggish movements, reduced power, overheating, and ultimately, catastrophic system failure. This replacement pump is designed for a straightforward installation process, minimizing the time your equipment spends out of service. It represents a cost-effective solution for maintaining peak machine performance without compromising on quality or durability. Ideal for fleet managers, equipment owners, and repair shops looking for dependable components for their heavy machinery.
By choosing this premium replacement main hydraulic pump, you are making an intelligent investment in the longevity and operational excellence of your CAT320C, CAT320D, or SBS120/140 equipped excavator. We are committed to supplying only components that deliver exceptional value and reliable performance in the toughest environments.
High Efficiency & Power Density
Displacement: 120 cc/rev (SBS120) / 140 cc/rev (SBS140)
Max Pressure: 140 bar (adjustable for system compatibility).
Optimized volumetric efficiency (≥92%) minimizes energy loss and reduces operational costs.
Durable Construction
Reinforced cast-iron housing with anti-corrosion treatment.
Hardened steel gears and bearings for extended service life under high-load conditions.
Intelligent Design
Integrated SBS (Smart Balancing System) technology ensures smooth operation and reduced vibration.
Modular design allows easy maintenance and component replacement.
Versatile Compatibility
Compatible with ISO VG 46/68 hydraulic fluids and biodegradable oils.
Adaptable to open-circuit and closed-loop hydraulic systems.
Global Compliance
Meets ISO 4401, SAE J744, and CE standards for safety and interoperability.
Construction Equipment: Excavators, loaders, cranes.
Agricultural Machinery: Tractors, harvesters, irrigation systems.
Industrial Systems: Presses, conveyor systems, recycling plants.
Mobile Hydraulics: Forestry equipment, mining drills.